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Finding the Third Proportional to 248,616,837 and 390,006,450

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Solution

The third proportional to 248,616,837 and 390,006,450 is: 611,805,028.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,616,837 : 390,006,450 = 390,006,450 : x
  2. Step 2: Convert to fraction form
    248,616,837/390,006,450 = 390,006,450/x
  3. Step 3: Cross multiply
    248,616,837x = 390,006,450 × 390,006,450
  4. Step 4: Simplify right side
    248,616,837x = 152,105,031,041,602,496
  5. Step 5: Solve for x
    x = 152,105,031,041,602,496/248,616,837
  6. Step 6: Final answer
    x = 611,805,028.48

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.